... QA QC,AQL... stainless steel flangeSize 1/2'' to 48'' Pressure 150LB, 300LB, 600LB, 900LB, 1500LB, 2500LB Connection Butt Weld & Socket Weld & Thread Standard ANSI ... Range: WN flange, SO flange, SW flange, PL flange, BL flange, LJ flange, TH flange, Usage: Petroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etc MATERIAL Stainless Steel Flanges ASTM ...